Rib-joint device for umbrellas.



J. D. WILLIAMSON. RIB JOINT DEVICE FOR UMBRELLAS, APPLICATION FILED MAY28, I914.

1,145,285. PateIIted July 6, 1915.

COLUMBIA PLANOORAPH (IO-.WASHINIJTON. I). Q

JAMES tygmmjihvrsos; i mamas,

'sNNsYLvAnIA, ASSiGNQIt or onnnALF To ciiaiennsafmnns, drwiYoMIssiNG,PENNSYLVANIA. I

RIB-JOINT nEvioE roe UM nnLLAs.

To-flZZ whom it may concern;

Be it known'that I, JAMES D, WILLIAM- soN, a citizen of the'UnitedStates, residing at Reading, in the county of Berks and State ofPennsylvania, have invented certain newa'nd useful'lmprovements in Rib-Joint Devices for Umbrellas, of Which the following is a specification.

My invention relatesto rib-joint with the accompanying drawings thenovel features of the invention being specifically pointedflout in thesubjoined claims. 7 1 Figure l isa sectional view of an upper notch.device embodying;myinvention in' preferred form; andFig. 2 is a similarView illustrating its application to the lowerrunner.

, Fig. 3 is'an eleva'tiontaken at right angles to Fig. 1; isa,bottom-plan view of the main; notch'part and Figs. 5 and 6 areperspective. views ofthe retaining ring parts thereof.-. Fig. 7,,is aplan view of the main m -e angaea Fig. 8 is a perspective view of one orother of the two retaining rings, employed therewith and Fig. 9 is aseparate view of onef'of the 'and the r1ng '15 is rotatively fixed to 16by.

pivot wires.

The umbrella stick 2 may be of ordinary construction, excepting that aspecial spring catch 3 is provided as shown, in connection with theupper notch, for a purpose herein after stated. 1

The main notch ring 5 is formed with a series of radial rib-receivingslots 6, 6, 6, corresponding with the number of ribs em ployed, asusual-The partition wings 7, 7 7, which form the side walls of these slots,

are circularly grooved on their lower faces so as to formcircumferential pivot-wire recesses 8, 8, 8; and each is also providedwith a second recess 9, arranged at approximately right angles to 8 asindicated and extendin longitudinally, or parallel with the axis, of

Specification of Letters Patent.

Patented uly 1915; y

. App1ieation filed May2'8, 19 14. s ri lno. 8 241,687,

angular rib-:pivotlwire 10, when the latter 7 3 so as to permit of thering. These recesses 8 and 9 are adapted to receivetherespective endportions of is engagedlin'theeye ll of a rib 12 and the latter isentered in one ofthe rib-receiving slots 6; there being a separaterib-pivotv wire 10 for each rib, and'each wire being-adapted to seat atits opposite ends lrespectivelyhin a circumferential recess 8 'ofonepartition and" a longitudinal recess? of"'anfa'djacent partition.,Tof'provide for properlyretainmg these rib-pivot wires 10, andthejrib's l2 suspended' therefrom, in described engagement with thenotch .'.ri1ig 5,, I"en1 ploy, as shown, two "'coeperating retainingrings, "15 and 16... These {rings areflprovidedfwith radialslots, 17{and l8 re'spectively, correspondingwith' the rib receiving slots 6fofthe notch ring 5,,so as to permit of its'ribs swingingii freely ,totheir closed vertical positions; but one ofthe p'artiti on'wingsbetween-two slots Ofthering 15, isyremove'd, so as to form awidiiedfslot 2Q which serves as an aperture through iwhich a single riband its, pivot wire may befwithdmwn, while a corresponding,partition lugorv projection 21 is 1 formed on the-cooperatin ring '16 5 to normally.take'fthe placeof the removed par- V tition of, the ring 15', y

f Thenorm l' posi-tions of the' t1pper 1iotch jparts'are indicated inFigs. and3. rib withl'it's pivdtjwire, being s'ecured'in jointedengagement with yth mainfnotch ring 5 bythe retainin fringsfl5jan'd .16.shown the'ring is ormedf with a sleeve portion 16 ,whichengagesthes'pecial spring tch 35. ebe fi ml arri d, by the la ,ter, and heldagainst rotation on the stick an engaging pin 30, so that therib-receiving slots of the several parts are in fixed alinement topermit. free swing of the pivoted ribs. The ring 15 is preferablyheldagainst end-wise movement on the stick, by means of aslightlyprojecting pin 31 as indicated, butthe sleeve ring 16 may be moved whendesired, by depressing the soring catch its passing over the latter. T i

In case it becomes necessary to remove a particular rib, the springcatch 3 is thus depressed and the sleeve ring 16 is turned with the ring15 to'bring'the pivot-wire aperture 20 of the latter into register withsuch pivot wire from the notch. After replacing this rib and pivot wire,the operation may be repeated as desired, and the parts finally returnedto normal position without in any way affecting the other ribs which areconstantly held in the notch by the ring 15.

The application of my invention to the lower runner involves only slightstructural modifications, as indicated in Figs. 2, 7 and 8. Therib-receiving slots, 6, 6 6 of the runner joint ring 5* are open at thetop to permit free swing of the stretchers 12 and no corresponding slotssuch as are shown in the upper notch construction, are required in thecooperating retaining rings 15 16. Also these latter rings may be mereduplicates, as shown, each having a pivotwire aperture 33, 3a which mustbe set into register with the pivot-eye end of a stretcher in order toenable the latter to be Withdrawn from. the runner. It will beunderstood that the runner joint ring 5 is fixed to the runner sleeve32, while the retaining rings 15*, 16 are rotatably mounted thereon, andthat the operation is essentially the same as in the case of the uppernotch described; also that the detail constructions which have beenspecifically described may be readily modified without departing fromthe spirit of the invention.

VWiat I claim is:

1. A rib-joint device for umbrellas comprising a stick ring havingregularly spaced rib-slots and partitions provided wit-h pivot- Wirerecesses, ribs in said slots having pivotwire apertures, a separatepivot-wire for each rib loosely inserted through the rib-aperture andengageable in said recesses on opposite sides of a rib-slot, andadjustable means for jointly looking or independently releasing saidpivot wires.

2. A rib-joint device for umbrellas comprising a stick ring formed witha series of rib-receiving notches and with partitions having series ofpivot-wire recesses extendi ing respectively circuinferentially andlongitudinally of the ring, a series of angular rib-pivot wires the endsof each of which are engageable respectively in a circumferential. and alongitudinal recess, and adjustable means for jointly looking orindependently releasing said pivot Wires.

3. A rib-joint device for umbrellas comprising a stick ring havingregularly spaced rib-slots and partitions provided with pivotwirerecesses, ribs in said slots having pivotwire apertures, a separatepivot-wire for each rib loosely inserted through the ribaperture andengageable in said recesses on opposite sides of a rib-slot, anadjustable retaining ring having a pivot-wire aperture, and anadjustable aperture covering.

4. A rib-joint device for umbrellas comprising a stick ring havingregularly spaced rib-slots and partitions provided with pivotwirerecesses, ribs in said slots having pivotwire apertures, a separatepivot-wire for each rib loosely inserted through the ribaperture andengageable in said recesses on opposite sides of a rib-slot, anadjustable retaining ring having a pivot-wire aperture, and anadjustable aperture covering ring.

5. A ribjoint device for umbrellas comprising a notch ring havingregularly spaced rib-slots, and partitions provided with pivot-wirerecesses; a correspondingly slotted retaining ring having one partitionremoved to provide a pivot-wire aperture, and a relatively movablecooperating retaining ring having a partition projection.

In testimony whereof I afiiX my signature in presence of two Witnesses.

JAMES D. WILLIAMSON. l/Vitnesses ADAM L. OTTERBEIN, D. W. STEWART.

Copies of this patent may he obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

